Upload arquivos com commons file upload

Front-end
#1

Estou tentando fazer um upload de arquivos usando jsp + servlet, mas não está funcinando. Segui um exemplo que achei na net, ele não da erro nenhum mas tbem não salva a imagem na pasta upload, a mesma existe pois já verifiquei. As informações sobre o nome o tamanho da imagem e outras que mando imprimir funcionam perfeitamente, apenas não está guardando na pasta, então segue meu código.

jsp

       <form action="CommonsFileUploadServlet" enctype="multipart/form-data" method="POST">
            <input type="file" name="file1"><br>
            <input type="Submit" value="Upload File"><br>
        </form>

Servlet

public class CommonsFileUploadServlet extends HttpServlet {
	private static final String TMP_DIR_PATH = "/temp";
	private File tmpDir;
	private static final String DESTINATION_DIR_PATH ="/upload";
	private File destinationDir;

	public void init(ServletConfig config) throws ServletException {
		super.init(config);
		tmpDir = new File(TMP_DIR_PATH);
		if(!tmpDir.isDirectory()) {
			throw new ServletException(TMP_DIR_PATH + " is not a directory");
		}
		String realPath = getServletContext().getRealPath(DESTINATION_DIR_PATH);
		destinationDir = new File(realPath);
		if(!destinationDir.isDirectory()) {
			throw new ServletException(DESTINATION_DIR_PATH+" is not a directory");
		}

	}

	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
	    PrintWriter out = response.getWriter();
	    response.setContentType("text/plain");
	    out.println("<h1>Servlet File Upload Example using Commons File Upload</h1>");
	    out.println();

		DiskFileItemFactory  fileItemFactory = new DiskFileItemFactory ();
		/*
		 *Set the size threshold, above which content will be stored on disk.
		 */
		fileItemFactory.setSizeThreshold(1*1024*1024); //1 MB
		/*
		 * Set the temporary directory to store the uploaded files of size above threshold.
		 */
		fileItemFactory.setRepository(tmpDir);

		ServletFileUpload uploadHandler = new ServletFileUpload(fileItemFactory);
		try {
			/*
			 * Parse the request
			 */
			List items = uploadHandler.parseRequest(request);
			Iterator itr = items.iterator();
			while(itr.hasNext()) {
				FileItem item = (FileItem) itr.next();
				/*
				 * Handle Form Fields.
				 */
				if(item.isFormField()) {
					out.println("File Name = "+item.getFieldName()+", Value = "+item.getString());
				} else {
					//Handle Uploaded files.
					out.println("Field Name = "+item.getFieldName()+
						", File Name = "+item.getName()+
						", Content type = "+item.getContentType()+
						", File Size = "+item.getSize()/1024 + "KB");
					/*
					 * Write file to the ultimate location.
					 */
					File file = new File(destinationDir,item.getName());
					item.write(file);
				}
				out.close();
			}
                        //response.sendRedirect("cadEnsaio.jsp");
		}catch(FileUploadException ex) {
			log("Error encountered while parsing the request",ex);
		} catch(Exception ex) {
			log("Error encountered while uploading file",ex);
		}

	}

}
#2